In India, smog season has become a growing public health crisis, especially in cities such as Delhi, Mumbai, and Kolkata, where air pollution levels spike during the winter months. Factors such as vehicular emissions, industrial activities, stubble burning, and construction dust contribute to dangerously high levels of particulate matter (PM2.5), nitrogen dioxide, and sulphur dioxide in the air.
For those living in urban areas or regions with high air pollution, smog season requires extra health precautions. According to the World Health Organisation, outdoor air pollution contributes to about 4.2 million premature deaths globally each year, with many linked to cardiovascular diseases.
